<!-- XBRL 2.1 Tests -->
<!-- Copyright 2003, 2004 XBRL International. All Rights Reserved. -->
<xsd:schema targetNamespace="http://www.example.com/test"
            xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:xbrli="http://www.xbrl.org/2003/instance"
            xmlns:my="http://www.example.com/test"
            elementFormDefault="qualified">

  <xsd:import namespace="http://www.xbrl.org/2003/instance"/>

	<xsd:redefine schemaLocation="104-18-base.xsd" id="redefineOfBaseTuple">
		<xsd:complexType name="addressTupleType">
			<xsd:complexContent>
				<xsd:restriction base="my:addressTupleType">
					<xsd:sequence>
						<xsd:element ref="my:street" minOccurs="0"/>
						<xsd:element ref="my:city" minOccurs="0"/>
						<xsd:element ref="my:stateOrProvince" minOccurs="0"/>
						<xsd:element ref="my:zipOrPostalCode" minOccurs="0"/>
					</xsd:sequence>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:redefine>
</xsd:schema>
